Why is the umbilical artery carrying deoxygenated blood? Why is the umbilical vein carrying oxygenated blood ?

Q: What is thrombolysis?

A: Those blood vessels that supply “oxygenated blood” to the body tissues from the heart are called…

Q: Which cell is larger, an erythrocyte or a human oocyte? What are their respective sizes?

A: Cell is the smallest structural and, functional unit of life. It is simple machinery that houses all…

Q: How is blood flow carried on in the human body?

A: The heart is a pump and generally beats about 60 to 100 times per minute. The heart sends blood to…

Q: What is erythroblastosis fetalis

A:

Q: What would be the reason for the difference in blood composition between men and women?

A: The major difference between male and female blood composition is male blood has more hemoglobin…

Q: when the blood from the heart goes out into the rest of the body it is oxygen rich blood, however…

A: The heart pumps the blood to the rest of the body through blood vessels. There are three main types…

Q: In a developing chicken embryo, what blood vessels enter into the common cardinal vein?

A: Common cardinal vein are the vein which drains into sinus venosus at the time prenatal development.…

Q: What is the reason for coloring blood vessels red and blue in drawings? Which vessels are usually…

A: Veins are the only blood vessels that can be visible near the outside of the epidermis since…

Q: What is the term for the epithelium of the endocardium and epicardium

A: Epithelium is the major tissue out of four animal tissue.  It is thin, protective and continuous…

Q: Which organ is sometimes called the RBC graveyard?

A: RBCs are the red blood cells which are formed in the red bone marrow of the bones. First…

Q: What is the main concern when blood is transfused fromone individual to another?

A: The circulatory framework, additionally called the cardiovascular framework or the vascular…

Q: Name two blood vessels that close off and become fibrous cords soon after birth?

A: Foetal blood circulation is slightly different than normal. This is due to the fact that the foetal…

Q: Why could a choke hold (a tight grip around the neck) cause a person to pass out? What arteries…

A: In the human body, the brain is a complex organ present. The brain is the control center of the…

Q: What are erythrocytes?

A: The blood cell, called a hematopoietic cell, is a cell that has been formed by hematopoiesis, which…

Q: What is the functional significance of the blood capillary network and lacteal in the center of each…

A: Digestion and absorption of ingested food takes place mainly in the small intestine. Effective…

Q: Why do blood platelets have a role in the shrinkage of small blood vessels?

A: when the skin is damaged there is a flow of blood from the damaged area this is because the blood…

Q: What chamber pumps blood to the entire body except the lungs?

A: The question says which heart chamber pumps the blood to entire body except the lungs.

Q: Why do the veins that drain the ovaries and testes terminate so far away from the gonads?

A: The inferior vena cava is the largest blood vessel within the body with a diameter of about 3.6 cm…

Q: umbilical arteries?

A: Umbilical arteries It is a paired artery found in the body It is found in abdominal and pelvic…

Q: Why are Companies selling kits to prospective parents so they can save the umbilical cord blood of…

A: The umbilical cord is the structure that connects the mother and embryo in the uterus.

Q: How to carry one red blood from the stomach to the left eye?

A: The left eye of the body is supplied by the ophthalmic artery by means of several branches. It is…

Q: Why blood does not clot in blood vessels?

A: Blood is a body fluid in humans and other animals. It delivers necessary substances such as oxygen…

Q: The mitral valve is located between the

A: The mitral valve or bicuspid valve is located between the left atrium and left ventricle.

Q: A blood sample taken from the umbilical cord contains high levels of oxygen and nutrients, and low…

A: Always umbilical Vein carry Oxygen, Nutrients and less quantity of CO2 for growing embryo. Umbilical…

Q: What are the functions of Leydig cells and why are they located close to the capillaries?

A: Male reproductive system includes testis, vasa deferens, external genital organ and glands…

Q: What is the functional significance of the shape of an erythrocyte?

A: Red blood cells commonly known as erythrocytes. Erythrocytes are cells are carry oxygen throughout…

Q: For each umbilical vessel and the major fetal blood vessels, state whether each vessel carries…

A: In a placental mammal, the umbilical cord is a conduit between the developing fetus and the…

Q: How do red blood get through capillaries smaller than themselves?

A: Flow of blood through the capillaries.

Q: What is a blood clot? What is it composed of?

A: A blood clot is a network of fibrin fibres and trapped blood cells that forms at the site of tissue…

Q: Describe the nutrient and gas content of the blood flowing in the umbilical vein.  Is this the kind…

A: The umbilical vein is a vein that takes oxygenated blood from the placenta into the developing fetus…

Q: Is there similar pattern between the carotid and iliac arteries?

A: Yes, carotid and iliac arteries has similarities in their pattern both are the arteries which supply…

Q: What is angioplasty

A: When the patient is suffering from a heart attack, the blood flow that brings oxygen to the heart…

Q: What is the importance of coagulation time?

A: Clotting time is the time required for the  clot to form in vitro. Normal range of clotting time is…

Q: why are erythrocyte lifespans so short?

A: Erythrocytes are the type of blood cells involved in the transportation of oxygen from the lungs to…

Q: Why is blood pressure measured using major arteries in the upper arm, rather than those in the lower…

A: Blood pressure It is the pressure exerted by the blood against the walls of the blood vessels. It…

Q: The arm contains arteries, veins and capillaries. Why blood is taken from the vein to perform…

A: The blood vessels are part of the cardiovascular system. They carry blood from the heart to all…

Q: What features distinguish myocardial cells from skeletal cells?

A: Cells are the basic structural and functional unit of a living organism.  Myocardial cells are the…

Q: How can the bloodcoagulation (clotting) processbe described?

A: Coagulation is also known as clotting, is the process in which the blood changes from a liquid state…

Q: What is a stipule? Distinguish a stipule from axillary bud.

A: Stipules form a part of leaf in which these are present in pair as lateral leaflike appendages…

Q: Can a A- pregnant woman receive O- blood for a transfusion? Why or why not ?

A:

Q: What specific cells are involved in development of leukocytes?

A: Bone marrow produces white blood cells, and organs like the spleen, liver, & kidneys control how…

Q: How many punnett squares are possible for each blood type (A,B, AB, O)?

A: Blood grouping is a technique of assigning a particular group to the group on the basis of types of…

Q: What causes the "lub" sound in the cardiac cycle?

A: A lub (also known as S1) and a dub (S2) are the two sounds of the normal cardiac cycle. There may be…

Q: What is a mitral valve?

A: Human heart valves are astounding constructions. These tissue-paper dainty films joined to the heart…

Q: Which coagulation factors are consumed in the clotting process?

A: Blood coagulation or blood clotting is the most effective hemostatic mechanism. It involves the…

Q: what strucutre is primarily responsible for returning materials from lymphatic circulation to the…

A: The lymphatic system is part of the circulatory system, which is made up of a network of…

Oogenesis

The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase. 

Cell Division

Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons: